Installation - Yamaha RS90K Service Manual

SECONDARY SHEAVE
Adjustment steps:
• Disassemble the secondary sheave.
• Remove the bolts and original shims 1.
• Install new shims of the proper thickness and
reassemble the secondary sheave.
• Measure the secondary sheave clearance
again.
Repeat these steps until the clearance is within
specification.
NOTE:
Yamaha recommends keeping the original shims.
Shims:
Part number
90201-061H1
90201-06037

INSTALLATION

1. Lubricate:
• Splines (fixed sheave)
Recommended grease:
ESSO beacon 325 grease or
Aeroshell grease #7A
2. Tighten:
• Secondary sheave bolt
Secondary sheave bolt:
64 Nm (6.4 m · kg, 46 ft · lb)
3. Adjust:
• V-belt position
Refer to "DRIVE V-BELT" in CHAPTER 2.
• Sheave offset
• Secondary sheave free play (clearance)
Refer to "SHEAVE OFFSET ADJUSTMENT"
in CHAPTER 2.
4-15
POWR
TR
Thickness
0.5 mm (0.02 in)
1.0 mm (0.04 in)